Earth is decorated with colorful fauna, sprawling blue oceans and remarkable, humanmade structures, but living on the Blue Planet isn't always safe. While you may not have given much thought to it, simply stepping outside your door can leave you vulnerable to diseases, violently-inclined humans and depending on what part of the world you live in, many dangerous animals- the latter of which are arguably the biggest threat to human life.

Shutterstock/ Aleksey Stemmer

Indeed, while the human race may feel invincible, you only have to step into the territories of other species to realize that we are far from invincible. But what species are the most dangerous? And why should we avoid them like the plague? Well, as you're about to find out, it isn't blood-sucking spiders and grizzly bears that should be most feared...